A rear axle assembly designed to fit within a predefined rear axle envelope of a transportation vehicle. The rear axle assembly comprising first and second double wheel hubs each supporting a pair of tires, a rear axle offset with respect to a central axis of the rear axle assembly, a rear axle input for receiving a drive input, first and second portal housings which facilitate respectively connecting the rear axle with the first and the second double wheel hubs, a four-point control arm for connecting the rear axle to a chassis, first and second spring carriers each carrying smaller and larger diameter air bellows, first and second longitudinal arms which interconnected the rear axle to the chassis, and first and second shock absorbers each located generally at or adjacent to the central axis and radially between the first double wheel hub and the first spring carrier.

An adjustable front axle includes an axle housing; an axle tube connected to an end of the axle housing; an inner-C-forging disposed on the axle tube at an end away from the axle housing; and a mounting apparatus configured for detachably fixing the inner-C-forging to the axle tube. The inner-C-forging is provided with a first angle adjustment structure, the axle tube is provided with a second angle adjustment structure. The mounting apparatus is disposed on the axle tube, and capable of cooperating with the inner-C-forging to fix the inner-C-forging to the axle tube. The first angle adjustment structure and the second angle adjustment structure have different cooperation positions such that the inner-C-forging has different installation angles relative to the axle tube. A vehicle is also provided.

The present disclosure provides an inner-C-forging assembly, an integral front axle assembly, and modification method thereof. The inner-C-forging assembly includes an inner-C-forging and a connection structure. The inner-C-forging is configured for connecting with a kingpin knuckle. The connection structure is configured for connecting with an axle tube. The inner-C-forging is detachably fixed to the connection structure, and the inner-C-forging has different mounting states relative to the connection structure. At different mounting states, a kingpin installation portion of the inner-C-forging has different positions relative to the connection structure. In the present disclosure, vehicle's caster angles on both sides and the pinion to driveshaft angle can be conveniently and independently adjusted while ensuring the support strength.

The present disclosure provides an inner-C-forging assembly, an integral front axle assembly, and modification method thereof. The inner-C-forging assembly includes an inner-C-forging and a connection structure. The inner-C-forging is configured for connecting with a kingpin knuckle. The connection structure is configured for connecting with an axle tube. The inner-C-forging is detachably fixed to the connection structure, and the inner-C-forging has different mounting states relative to the connection structure. At different mounting states, a kingpin installation portion of the inner-C-forging has different positions relative to the connection structure. In the present disclosure, vehicle's caster angles on both sides and the pinion to driveshaft angle can be conveniently and independently adjusted while ensuring the support strength.

The present invention relates to an output gear, a wheel and a driving device for an electric scooter, and to the electric scooter. The output gear for an electric scooter comprises a gear having teeth and tooth spaces, an external spline securely connected to the center of a gear face of the gear, wherein the external spline has external spline teeth and external spline tooth spaces, shaft holes are defined in centers of the gear and the external spline. The gear directly outputs torque after speed reduction to the wheel by means of a connection structure of the external spline and the internal spline, so that a final output is more stable, the problem in a conventional electric scooter that the rotation of the scooter's wheel is affected due to a clearance between the output shaft and the wheel is alleviated, the speed reduction precision and sensitivity are consequently improved.

Axle assembly includes first and second axle housings extending toward opposing sides of a vehicle frame with the axle housings aligned to define an axle axis, first and second wheel ends, first and second drive shafts disposed within the first and second axle housings, a gearbox having a first surface facing one side of the vehicle frame and a second surface facing the other side of the vehicle frame with the gearbox cantilevered outwardly relative to the aligned axle housings to define a gearbox axis parallel to a longitudinal axis of the vehicle frame and transverse to the axle axis, and an electric motor coupled to the second surface of the gearbox and extending toward the first side of the vehicle frame to define a motor axis that is parallel to and offset from the axle axis, transverse to the gearbox axis, and transverse to the longitudinal axis.

A wheel drive assembly for transferring propelling torque from a source shaft to a wheel, the source shaft receiving torque from a motion actuator. The wheel drive assembly includes a wheel-hub, adapted to have the wheel mounted thereon, the wheel-hub being arranged about a longitudinal axis, which is adapted to coincide with a rotation axis of the wheel. The wheel drive assembly further includes a drive axle and a constant velocity (CV) joint mounted onto an outer end of the drive axle. The CV joint connects the drive axle to the wheel-hub. An outermost surface of the CV joint is disposed outwardly of an outermost surface of the wheel hub, along the longitudinal axis of the wheel-hub.

An adjustable front axle includes an axle housing; an axle tube connected to an end of the axle housing; an inner-C-forging disposed on the axle tube at an end away from the axle housing; and a mounting apparatus configured for detachably fixing the inner-C-forging to the axle tube. The inner-C-forging is provided with a first angle adjustment structure, the axle tube is provided with a second angle adjustment structure. The mounting apparatus is disposed on the axle tube, and capable of cooperating with the inner-C-forging to fix the inner-C-forging to the axle tube. The first angle adjustment structure and the second angle adjustment structure have different cooperation positions such that the inner-C-forging has different installation angles relative to the axle tube. A vehicle is also provided.

An axle assembly having an electric motor, a wheel end assembly, and a reduction gear module. The electric motor may have a rotor that is rotatable about a first axis. The wheel end assembly may be rotatable about a second axis that may be disposed above the first axis. The reduction gear module may transmit torque between the electric motor and the wheel end assembly.

An axle assembly for frame rail vehicles is described herein. The axle assembly includes a first axle shaft and a second axle shaft orientated along a first axis of rotation. A first electric machine is orientated along a second axis of rotation and a second electric machine is spaced from the first electric machine and orientated along a third axis of rotation. A differential gear set is disposed about the first axis of rotation and is coupled to and driven by a common gear reduction to transfer rotational torque from the first and second electric machines to the first and second axle shafts. A speed change mechanism is coupled between the common gear reduction and the differential gear set to change the rotational torque transferred to the first and second axle shafts.